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 | Extension Type: Single line telephone; AT&T Attendant; Merlin Mail Voice Messaging System; T/R adjunct; analog data device(modem). |
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| Capacity: 12 T/R extensions on 2-way voice transmission path with support for telephones with message-waiting LEDs, 2 TTRs. |
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| Power: 21 VDC, 600-ohm battery source. |
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| Ringing current: 105-Vrms, 30-Hz sinusoidal ringing superimposed on -48 VDC. |
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| REN: <2.2 per port. |
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| Disconnect Signal: 900 ms (T/R short for answering machines, Group III Fax etc.). |
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| Switchhook Flash Detection: 300-1200 ms. |
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| Loop range: 1000 ft. in-building only. |
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| Weight (lbs) |
| 4 |
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| Dimensions (inches) |
| 21x10x1 |
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